IMP stable release now works with SWIG 4.2

This reverts commit d9aaf0a.

support/setup_ci.sh

@@ -15,11 +15,8 @@ conda config --remove channels defaults
 conda config --add channels conda-forge
 if [ ${imp_branch} = "develop" ]; then
   IMP_CONDA="imp-nightly"
-  swig="swig"
 else
   IMP_CONDA="imp"
-  # IMP stable does not yet work with SWIG 4.2
-  swig="swig<4.2"
 fi
 if [ ${python_version} = "2.7" ]; then
   BOOST=""
@@ -28,7 +25,7 @@ else
   BOOST="libboost-devel"
   pip="pip"
 fi
-conda create --yes -q -n python${python_version} -c salilab python=${python_version} ${pip} ${IMP_CONDA} ${BOOST} gxx_linux-64 eigen cereal ${swig} cmake numpy
+conda create --yes -q -n python${python_version} -c salilab python=${python_version} ${pip} ${IMP_CONDA} ${BOOST} gxx_linux-64 eigen cereal swig cmake numpy
 eval "$(conda shell.bash hook)"
 conda activate python${python_version}